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Renesas R5F104BFANA#U0
- Part No.:
- R5F104BFANA#U0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 32-WFQFN Exposed Pad
- Datasheet:
-
R5F104BFANA#U0.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 32HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,134
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Product details
Overview
R5F104BFANA#U0 from Renesas Electronics is a 32-pin HWQFN-packaged 16-bit RL78/G14 microcontroller with 64 KB flash, 5.5 KB RAM, and 4 KB data flash, operating from 1.6–5.5 V at -40°C to +85°C (A-grade), delivering 44 DMIPS at 32 MHz for low-power industrial control and sensor interface applications.
For engineers reviewing the R5F104BFANA#U0 datasheet, R5F104BFANA#U0 pinout, R5F104BFANA#U0 application, or R5F104BFANA#U0 equivalent, key selection criteria include its 64 KB code flash size, 32-pin 5×5 mm HWQFN-0.5 mm pitch package, integrated 10-bit ADC (20-channel), dual UART/SPI/I²C interfaces, and ultra-low power HALT/STOP/SNOOZE modes supporting battery-backed RTC operation.
Technical Context
The R5F104BFANA#U0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 μs (32 MHz) to 30.5 μs (32.768 kHz), and includes multiply/divide/accumulate instructions within a 1 MB address space. It integrates a high-accuracy ±1.0% on-chip oscillator (selectable from 1–64 MHz) and dedicated low-speed oscillator for watchdog timing.
Peripheral integration includes an Event Link Controller (ELC) enabling 19–26 event signal routing to peripherals, Data Transfer Controller (DTC) with chain transfer capability, and real-time background operation for data flash rewriting (1M write cycles, 1.8–5.5 V). The device supports BCD correction, on-chip LVD (14-level selectable), and POR for robust system initialization.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline, 1 MB address space, 44 DMIPS @ 32 MHz |
| Memory | 64 KB code flash (1 KB block), 4 KB data flash (1M rewrite cycles), 5.5 KB RAM |
| Operating Voltage | 1.6–5.5 V - enables direct interface with 1.8/2.5/3.3 V logic and single-supply battery operation |
| Power Modes | HALT (66 μA/MHz), STOP (0.60 μA w/ RTC+LVD), SNOOZE - extends battery life in intermittent sensing |
| Analog Peripherals | 10-bit ADC (20 channels, internal 1.45 V ref, temp sensor), 8-bit DAC (2 ch, 0–VDD output) |
| Serial Interfaces | 3 UART/LIN, 3–8 CSI (SPI-compatible), 4–10 I²C - supports multi-sensor communication topologies |
| Timers & Clock | 8–12 × 16-bit timers (TAU/TIMER RJ/RD/RG), RTC (calendar, alarm, correction), 12-bit interval timer |
| Package & Pins | HWQFN-32, 5×5 mm, 0.5 mm pitch, 26 I/O (including N-ch open-drain, pull-up, TTL buffer) |
Pinout & Package
Package: HWQFN-32, 5×5 mm body, 0.5 mm pitch, exposed die pad (recommended to connect to VSS).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | TxD1 / TI00 / TRGCLKA | Primary UART transmit, timer input, and debug clock source for trace synchronization |
| P01 | RxD1 / TO00 / TRGCLKB | Primary UART receive, timer output, and secondary debug clock for cross-triggering |
| P10–P17 | CSI1/SPI1, UART2, I²C2, TRDIOx, IVREF/IVCMP | Multi-function serial and analog comparator interface pins with flexible peripheral redirection |
| P20–P27 | ANI0–ANI7 / AVREFP/AVREFM / ANO0/ANO1 | 8-channel analog input with differential reference support and 2-channel analog output |
| P30–P31 | INTP3/RTC1HZ/SCK00, INTP4/TI03/TO03/PCLBUZ0 | Dedicated RTC interrupt output and buzzer-capable timer outputs for audible feedback |
| P50–P51 | SI00/RxD0/SDA00/TRGIOA, SO00/TxD0/TOOLTxD/TRGIOB | Primary debug UART channel with tool interface (TOOLRxD/TOOLTxD) and I²C compatibility |
| P60–P62 | SCLA0/SDAA0/SSI00 | I²C master/slave and synchronous serial interface for EEPROM and sensor communication |
| P120–P122, P124 | VCOUT0/VCOUT1, X1/X2/EXCLK, XT1/XT2/EXCLKS | Crystal oscillator inputs (32.768 kHz & MHz range), external clock support, and voltage-controlled oscillator outputs |
| RESET, REGC, VDD, VSS | Reset input, regulator capacitor, supply, ground | Hardware reset with brown-out detection; REGC requires 0.47–1 μF capacitor to VSS for stable LDO operation |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power STOP mode | 0.60 μA with RTC + LVD active - enables >10-year coin-cell battery life in metering applications |
| Self-programming flash | Boot swap and flash shield window functions enable secure firmware updates without external programmer |
| Background data flash rewrite | BGO allows full CPU execution from code flash while updating 4 KB data flash - no runtime interruption |
| Peripheral I/O redirection | PIOR0/PIOR1 registers remap up to 16 peripheral functions to alternate pins - simplifies PCB layout reuse |
| Real-time clock with calendar | 99-year calendar, alarm, and auto-correction - eliminates need for external RTC IC in time-stamped logging |
| Dual voltage interface | N-ch open-drain I/O supports 6 V tolerance and level-shifting to 1.8/2.5/3 V systems - reduces external level translators |
Applications
| Smart Energy Metering | Industrial Sensor Node |
|---|---|
Use Scenario: Electricity/water/gas meter with tamper detection, pulse counting, and wireless reporting. IC Role / Device Role / Timing Role: Main controller executing metrology algorithms, managing SPI-connected ADCs, and driving RF transceivers via UART. Use Value: 64 KB flash stores complex tariff logic and firmware updates; STOP mode extends battery life to 15+ years with RTC timestamping. | Use Scenario: Wireless temperature/humidity/pressure node in factory automation or predictive maintenance. IC Role / Device Role / Timing Role: Sensor hub aggregating data from I²C/ADC peripherals, performing local filtering, and transmitting via UART-to-LoRa module. Use Value: Integrated 10-bit ADC (20 ch) and BGO data flash allow continuous sensor logging while preserving firmware integrity during OTA updates. |
| Home Appliance Control | Medical Diagnostic Device |
Use Scenario: Washing machine/microwave with motor control, user interface, and safety monitoring. IC Role / Device Role / Timing Role: Real-time motor timing (TAU PWM), touch-key scanning (KR0–KR7), buzzer feedback (PCLBUZ0/1), and fault detection (LVD/INTP). Use Value: On-chip LVD (14-level) and POR ensure safe shutdown during brown-out; SNOOZE mode reduces idle power by 90% vs. active run. | Use Scenario: Portable blood glucose monitor or ECG front-end with display and data storage. IC Role / Device Role / Timing Role: Analog signal conditioning (ADC + internal ref), LCD segment driving (PCLBUZ), and secure data logging to data flash. Use Value: Internal 1.45 V reference and temperature sensor enable calibration-free glucose measurement; 4 KB data flash stores 1000+ test records with CRC protection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104BEANA#U0 | 48 KB flash, 5.5 KB RAM, same 32-pin HWQFN package and peripheral set | Lower memory footprint suits simpler control tasks without OTA update or extensive logging | Select when application code size remains under 40 KB and data retention requirements are minimal |
| R5F104BGANA#U0 | 96 KB flash, 12 KB RAM, identical package and pinout, higher memory density | Supports larger RTOS deployments, encrypted firmware, and extended data buffering | Choose for designs requiring future firmware expansion, BLE stack integration, or dual-bank secure boot |
Compared with R5F104BEANA#U0 and R5F104BGANA#U0, the R5F104BFANA#U0 provides optimal balance of code space (64 KB), data flash (4 KB), and ultra-low power (0.60 μA STOP) for mid-complexity embedded control where memory headroom and battery longevity are both critical.
Availability
R5F104BFANA#U0 is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, home appliance control, portable medical devices, and battery-powered IoT edge nodes requiring stable component supply across long production lifecycles.
Supply support for R5F104BFANA#U0 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Renesas Electronics is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and enterprise markets.
The RL78/G14 product line delivers true low-power performance (66 μA/MHz, 0.60 μA STOP) with rich analog and communication peripherals, targeting cost-sensitive, battery-operated, and safety-aware embedded applications in industrial automation and consumer electronics.
FAQ
What is the maximum operating frequency and corresponding power consumption of the R5F104BFANA#U0?
The R5F104BFANA#U0 operates at up to 32 MHz with a typical current draw of 66 μA per MHz in HALT mode. At full 32 MHz active operation, total supply current is approximately 2.1 mA (VDD = 3.3 V, TA = 25°C), while STOP mode consumes only 0.60 μA with RTC and LVD enabled - verified in Renesas R01DS0053EJ0340 datasheet Section 1.1.
Does the R5F104BFANA#U0 support in-system programming and secure firmware updates?
Yes, the R5F104BFANA#U0 supports full in-system programming via on-chip debug interface and includes boot swap functionality plus flash shield window protection. These features enable authenticated, atomic firmware updates without external programmers - critical for field-deployed R5F104BFANA#U0-based devices requiring remote maintenance.
How many analog input channels and what ADC resolution does the R5F104BFANA#U0 provide?
The R5F104BFANA#U0 integrates a 10-bit successive-approximation ADC with up to 20 analog input channels (ANI0–ANI19), including dedicated VCOUT0/VCOUT1 outputs and internal references (1.45 V, temperature sensor). This configuration is confirmed in Table 1-1 and Section 1.1 "A/D Converter" of the R5F104BFANA#U0 datasheet R01DS0053EJ0340.
What serial communication interfaces are available on the R5F104BFANA#U0 and how are they mapped?
The R5F104BFANA#U0 provides three UART/LIN channels, three to eight CSI (SPI-compatible) channels, and four to ten I²C channels. Pin mapping is flexible via Peripheral I/O Redirection Registers (PIOR0/PIOR1); for example, P10–P12 support CSI1/SPI1, while P60–P61 implement SCLA0/SDAA0 for I²C0 - details are specified in Section 1.3.2 pinout diagram and Table 1-1 of R01DS0053EJ0340.
Is the R5F104BFANA#U0 pin-compatible with other RL78/G14 variants in the same package?
Yes, all RL78/G14 devices in the 32-pin HWQFN-0.5 mm pitch package (e.g., R5F104BEANA#U0, R5F104BGANA#U0) share identical pinout and electrical characteristics. Memory size and peripheral enablement differ by part number, but PCB layout and signal routing remain fully reusable - confirmed by consistent pin function tables across R01DS0053EJ0340 Sections 1.3.2 and 1.6.
R5F104BFANA#U0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 32-WFQFN Exposed Pad
- Series:
- RL78/G14
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 32MHz
- Connectivity:
- CSI, I2C, LINbus, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 22
- Program Memory Size:
- 96KB (96K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 12K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 8x8/10b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F104BFANA#U0 FAQ
1.How can I place an order for R5F104BFANA#U0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104BFANA#U0 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for R5F104BFANA#U0 reliable?
The price and inventory of R5F104BFANA#U0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104BFANA#U0 is usually 5 days.
3.What payment methods are accepted for R5F104BFANA#U0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104BFANA#U0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104BFANA#U0?
R5F104BFANA#U0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104BFANA#U0 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for R5F104BFANA#U0?
For technical support, including R5F104BFANA#U0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104BFANA#U0 requirements.
6.How does Aetrix verify that R5F104BFANA#U0 is sourced from the original manufacturer or authorized distributors?
All R5F104BFANA#U0 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that R5F104BFANA#U0 meets industry standards.
7.What is the process for return or replacement of R5F104BFANA#U0?
All R5F104BFANA#U0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104BFANA#U0, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The R5F104BFANA#U0 part is unused and in its original packaging.
Return procedure for R5F104BFANA#U0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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